HDB block · Clementi

Blk 421 Clementi Avenue 1

Singapore 120421

300 flats40 storeysBuilt 2012Lease from 2013
See resale prices →

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Blk 421 Clementi Avenue 1 at a glance

Distances are straight lines from the block. Walking routes are longer.

Nearest MRT / LRT
760 mClementi MRT
Nearest hawker centre
630 mClementi Ave 3 Blk 448
Primary schools within 1 km
2Pei Tong Primary School
99-year lease
Ends 2112About 86 years left

Flats in this block: 4-room 224 · 3-room 76

Recent resale prices

19 HDB resale flats in this block registered Oct 2024 – Sep 2026. What buyers paid, from HDB; not a valuation.

Flat typeThis blockWhole street
3-room$685,0004 sales · $871 psf$705,00018 sales · $879 psf
4-room$965,00015 sales · $931 psf$948,88855 sales · $898 psf

Latest sales in this block

MonthFlat typeStoreysSizePriceLease left
Sep 20264-roomStoreys 22–24 · 1,033 sq ft22–241,033 sq ft$996,888$965 psf86 yrs
Aug 20264-roomStoreys 7–9 · 990 sq ft7–9990 sq ft$880,000$889 psf86 yrs 1 mth
Jun 20264-roomStoreys 22–24 · 1,033 sq ft22–241,033 sq ft$970,000$939 psf86 yrs 4 mths
May 20263-roomStoreys 19–21 · 786 sq ft19–21786 sq ft$650,000$827 psf86 yrs 5 mths
Apr 20264-roomStoreys 25–27 · 1,076 sq ft25–271,076 sq ft$975,888$907 psf86 yrs 5 mths
Mar 20264-roomStoreys 19–21 · 1,033 sq ft19–211,033 sq ft$985,000$953 psf86 yrs 6 mths
Jan 20264-roomStoreys 31–33 · 1,033 sq ft31–331,033 sq ft$1,038,000$1,005 psf86 yrs 9 mths
Nov 20254-roomStoreys 10–12 · 1,076 sq ft10–121,076 sq ft$965,000$897 psf86 yrs 11 mths
Nov 20254-roomStoreys 22–24 · 980 sq ft22–24980 sq ft$978,000$998 psf86 yrs 11 mths
Aug 20254-roomStoreys 10–12 · 980 sq ft10–12980 sq ft$942,888$963 psf87 yrs 2 mths
Aug 20254-roomStoreys 22–24 · 1,076 sq ft22–241,076 sq ft$970,000$901 psf87 yrs 1 mth
May 20254-roomStoreys 25–27 · 990 sq ft25–27990 sq ft$965,000$974 psf87 yrs 5 mths

Check a flat: recent sales like it in this block and street →

Median: half the sales were above, half below. Per sq ft uses each flat’s floor area. Lease left is at the time of sale.

What’s nearby

Within 1 km of the block, nearest first.

MRT and LRT

Beyond 1 km

Stations not yet open are not counted.

Schools

  • Nan Hua High School Secondary school110 m
  • Nus High School of Mathematics and Science Secondary school400 m
  • New Town Secondary School Secondary school540 m
  • School of Science and Technology, Singapore Secondary school760 m
  • Pei Tong Primary School Primary school790 m
  • Clementi Primary School Primary school880 m
  • Kent Ridge Secondary School Secondary school960 m

Primary 1 registration uses the official home–school distance, not these figures. Check OneMap for your block.

Food, parks and services

  • My Family Clinic (Clementi) CHAS clinic80 m
  • Taman Mas Merah Playground Park410 m
  • Clementi Sport Centre Sport centre440 m
  • Clementi Ave 3 Blk 448 Hawker centre630 m
  • Clementi Public Library Library800 m
  • West Coast CC Community club820 m

Everything near Clementi Avenue 1: the street guide →

Other blocks on Clementi Avenue 1

Sources · data.gov.sg under the Singapore Open Data Licence v1.0

  • HDB Property Information, HDB (updated 2026-07-06)
  • Resale flat prices based on registration date from Jan-2017 onwards, HDB (updated 2026-10-07)
  • Hawker Centres (GEOJSON), NEA (updated 2026-10-07)
  • Parks, NParks (updated 2026-10-07)
  • Park Connector Loop, NParks (updated 2026-07-15)
  • CHAS Clinics, MOH (updated 2024-06-06)
  • Pre-Schools Location, ECDA (updated 2024-06-06)
  • Community Clubs, PA (updated 2024-06-06)
  • Libraries, NLB (updated 2024-06-06)
  • SportSG Sport Facilities (GEOJSON), SportSG (updated 2025-11-13)
  • Dates of Hawker Centres Closure, NEA (updated 2026-09-21)
  • General information of schools, MOE (updated 2026-04-17)
  • Block and school locations: OneMap, Singapore Land Authority · Town: URA Master Plan 2025